Henon Ontology SDK

The Infrastructure for Private Markets

Go from unstructured financial documents to structured, validated data in a single API call. Transform PDFs and excel sheets into constructed tables. Build the future of private capital. With Zero Errors.

main.py
from henon import Henon

client = Henon()

# Go from PDF to structured data in two lines
upload = client.upload(
    file_path="quarterly_report.pdf"
)
result = client.extract.run(
    input=upload,
    schema_name="private_equity/quarterly_report/v1"
)

print(result.data["schedule_of_investments"])

Why developers choose Henon

We're not a generic data extraction tool. We're the only API built from the ground up for private markets.

Domain-Specific Intelligence

Our models are pre-trained on millions of private markets documents. We know what a capital call, a K-1, and a covenant certificate are — so you don't have to teach us.

Zero-Error, Validated Data

Don't just parse documents — understand them. Our API performs financial validation and reconciliation out of the box, delivering data you can trust in production.

Developer-First Experience

World-class documentation, simple pricing, and powerful SDKs. We're obsessed with making the developer experience as frictionless as possible.

Built for financial use cases.

From fund administration to AI pipelines, the Ontology SDK powers the workflows that matter.

Automated Fund Admin

Ingest capital calls, distributions, and NAVs to automate your back-office. Go from PDF to structured data in seconds, not hours.

Start building
fund-admin.py
result = client.extract.run(
    input=upload,
    schema_name="private_equity/capital_call/v1"
)

# Access structured fields instantly
print(result.data["commitment_amount"])
print(result.data["due_date"])
print(result.data["investor_allocations"])

25+ pre-built schemas

No need to define your own extraction templates. We've already built schemas for the documents that matter in private markets.

PE
Capital Calls
PE
Distribution Notices
PE
Quarterly Reports
PE
K-1 Tax Forms
PE/PC
NAV Statements
PC
Covenant Certificates
PC
Borrowing Base Reports
All
Financial Statements
All
Trial Balances
All
Transaction Ledgers
All
Transcripts
All
Budgets
+ 13 more schemas across PE, PC, and LP document types

Built for builders

Fintech Developers

Engineers at software companies serving the private markets — portfolio management, reporting, and analytics tools.

Fund Admin Tech Teams

Developers at service providers building internal automation for capital calls, distributions, and reporting.

Vibe Coders

Analysts and associates at PE/PC/LP firms using AI tools to build their own custom workflows and automations.

LLM Agent Builders

AI systems and agents that need to access, compute over, and reason about financial data at scale.

Ready to build?

Get your free API key and start with 500 free data tokens per month. No credit card required.